If a root of the equation ax2+bx+c=0 be reciprocal of a root of the equation a′x2+b′x+c′=0, then?
If a root of the equation ax2+bx+c=0 be reciprocal of the equation then a′x2+b′x+c′=0, then
The determinant ∣∣ ∣ ∣∣b2−abb−cbc−acab−a2a−bb2−abbc−acc−aab−a2∣∣ ∣ ∣∣ equals to:
(a) abc(b-c)(c-a)(a-b) (b) (b-c)(c-a)(a-b) (c) (a+b+c)(b-c)(c-a)(a-b) (d) None of these
a2+bc+ab+ac=?(a) (a+b)(a+c)(b) (a+b)(b+c)(c) (b+c)(c+a)(d) a(a+b+c)